Nail-making machine.



n. H. McLELL-AND,` NAIL MAKING MACHINE.

APPLICATION FILED MAYZT. |912.

3 SHEETS-SHEET 2.

Patented Feb.27,1917.

D. H. MCCLIELLAND. NAH. MAKING MAGHiNE.

I' APPLIGMION FILED MM2?. :912. l g 1,217,194. Patented Feb. 2 17.I

3 SHEETSTSHE DAVID H. MecLELLAma, oFoHIoAoo, ILLINOIS.

. NAIL'MAKING MACHINE.

Application filed Mey 27, 1912. Serial No. 700,089,

To all 'whom z't may concern.

Be it known that I, DAVID H. MCCLEL- LAND, a citizen of the 'United States, resid ing in Chicago, inthe State of Illinois, have inventednew and useful Improvements in ivan-Linking Machines, of which the following a specification.

M Y invention relates more )articularl to that class of machine Whiclrmay be used to make a nail having two heads, and make it from one piece of material.` Further objects ofthis invention are to providea machine of extreme simplicity of parts and of such a. combination. of parts and members that'it will impart great pressure upon the headfornnng dies as compa-red with the amount f of power transmitted to the machine.

lith the above and other objects in view,

this invention consists of. a novel provision, Construetlon, associa-mon and rela'tlve' ar'- `ran ement of parts and members as he'rema .ter desorlbed and shown in the accompanying drawings.

In `the drawings: Figure 1 is a. side eleva-'tion with .porti ons broken awayfor olearness'of illustration.

Fio. Qis anenlarged 'portionof1the feed rier removedfrom thema hine 'taken o n hne" arms removed from thefrroh Fig. 3,581.1 pm ioner lheffeed. @nach and those shown inFig. 1.

Figjlis'a `topplan View. Fig. -is a topjplan View with. portions removed and movable position 'from those showninli 4;. lFig. 6. is an enlarged View' loo'sjeand tight pulleyend crank diskremoVed 4Vfrom the machine* v f Fig 7 is zin-enlarged senti-o on line w+-a'- of Fig. ,1; ig.- 8 is anl enlarged` view? taken broken away exposing-thegr .die a knife.

Slmllur reference Characters referto s`1m1- lar parts andimelnbersthroughout the sev'- 'v whiohis part of member 11, is'

in link 4:2. Slohilwll eral vlews.

" In detail the numeral 1 refersto -the end -of aleoil of.wr e (coil notsho'vvn)'. 2 ydesig- 'blllt any "forni ofr straightener may be used. -3 shows a forml natesf a straightener,

v Specication of Letters Patent.

.like manner to',v ma'yfheremoved new' ones placed-i Edith@ die carriere die ca-rrier.. ni 'the opposite'position from N opposite fend rbifure parts in the opposite"4 inneemt-ed in Fig. 5. "es des@ Ain @hohem-forming dies ssen 34.- .3-

.natesapair of list springs intend Y .muy hold the' grip-dieser, 'end Shear ndshear,

seenin Fig. 1) on the' in'stnt in Whioh the permit Patented Feb. 27, v1.91m

may be used. 'f1-shows a pair of pulleys, one `loose and the other secure on shaft 5. 0n the opposite end of same is a' crank disk 6, havlng a crank pin 7, upon which is mot'ably mounted a. driving rod 8. To'the opposite end of said driving rod is movably vsecuredl the' intermediate jolnt of the'toggle' 9. One end of the toggle is pivoted to a bracket 10, which is'firmly secured to they vbed 14. The opposite end of said toggle 9 is pivoted to a. driving member 11,

tongues 12, adapted totravel in grof'ov sj-13, 1n the bed 14.' A- pair of rollers' 15ers 'oi1r-v member 11.` `The seid-rollers 15 are adapted a. collalionfthe finished prodc knivesQZ open andA of engtgent with .wire shows 'a paifof pins intended to limit zthe `Inovern'ent .of levers 18. 38 is te Het springntended to cause thefd'e# 'carrier toretreat toits no1-'mel position (as grip 'dies open end release the finished prod# uct. A pin 39 securedto a stdr'g' arm 40 opted te travel in A@s101141 pin-39 temeva forward-after lst 'athen'. iii 5 clutch j has stopped vvhohis clearly shown Fig; '3., 42 pin 3e with d to non.

Ahaving fingers 43 heldin enga ement with the wire 1 by. Hat springs 4 -The coil spring 45 will hold the feed clutch 3 in its normallposition. 46 is a pin to limit the movement of thev feed clutch 3. 47 1s a nstandin bracket secured to the-bed `,14l by bolts.

he'upper end is duplex, so constructedl as tol receive the diecar'rier 27,

which has its 'upper end made in the form' of a yoke 48.- his method is intended to prevent wabbling and cariz)7 the dies 33 and 34 very exact in their position so the work -V piece 23 willbe sure to enter them. 49 is a standing bra ket'secured tothe bed 14 for the f purposeof.v supporting the feed clutch 3, which i'spivotally sus ended u on bolt 50. It will be understood t iat the r/with it crank pin 7, causing the driving ro 8 to take a downward course, takmg w 1th.1t

' theintermediate" jointv of toggle 9.- As one end of said toggle is. heldby the-bracket 10 the posite end willnowtravel forward, carrying with it the driver 11 upon-tongues 12 "infgrooves 13 in the bed 14. 4The air of rollers 415 on-crossarm 16 engage t e' cam surfaces 17 on levers 18, and compel them to swing upon their bearings 19. V'lh-e'ehort anns'20 of levers, 18 now bear upon the rockerarms v21 and elose'the shea' knives 22 andsever a work piece of wire 23 from the wire V1, and'make a'pointon 'itfsimultaxwously.A Before the work piece isentirely severedffrom the wire the corrugations on the grip dies 24 begin, to cut intol the work iecejand hold it securely.l The mechanism 1s soitimed that the bumper. plate 25 now collides with bumper plate 26 and will swing the freeend of, die-carrier 27 rf i"\1v`a.rd on its bearing28. -A pair of rollers 29 now engage j rollers 29 are now no longer in engagement with cheeks 31 and the. aws of the dievengagement with levers 18, then the l'flat springs 36 bear upon rocker arms 21 and open the 'dies 24 andrelease the nail. This movement swingsfthe lon arms of `levers 18 toward each other unti they stop .against thepins 37. .Immedlately after the nail is released from the grip dies 24 the fiat spring-38 swings the die-carrier 27 back to its normal position, as seen in Fig. 1. The

carrier'open the dies, and t e nail falls from 'f' out. the-dies 33 and.34. The pin 39 on stand ing arm 40 is so timed that 1t now 'comes to the end of the slot 41 in link 42 and pulls itl forward, bringing with it feed clutch 3. The fingers 43 held in engagement with wire 1 by fiat springs'44 draw the wire into ltheV machine the reqllllired distance to form a new vwork piece. T

e coil springl will bring the feed clutch 3 back to its nor al position, as seen in Fig. 3, when the driver 11 goes forward. The pin 46 is set in such position Vas to insure the correct length of a work Ypiece of wire.

Because of thefact that it re'uires 'great pressure to upset the collar 35 I ave placed the rocker arms 21 at an angle of aboutA forty-five degrees from the line in which the wire ltrav'els. This position will add tothe pressure on the grip dies 24 beside the pres-V sure already obtained levers 18 aspreviousl described, or as vthe pressure of the l headorming dies 33 'and 34 increases upon"- the work p lece 23, the free ends of vrocker the cam: surfaces 30 loncheeksl and close thediesyas seen sectionally in Fig. 5. The

end ofthe work piece now enters thehole 'made ,b`y the grooves 32 inthe d' ,s 33 and 34; the"di es continue until thesho der a-on die 33engages-the end of the workpiece 23,

whichfwill' iipse t and'ill the pocket at b.

This constitutes the head ,en the end ofthe nail.` .A s' the dies proceed forward the surplus: Q fgivork 'piece 23 yet remaining will ment-ltakesplace in all4 the previously'de-` upstibetween the dies 33 and 34 and the gripjdies 24 as seen in 35 in'Fig. 3.- This v completes the formation of the nail. 'Crank pin'L? now bovins the upward half of the circle ittravels in and the opposite movescribed partsexcept the die-carrier 27 which remains until'the rollers 15 are no longer in 'arms' 21 would naturali close together, by referrln forceI w1 1 be brought upon the grip dies 24,

and they will cling to the work piece 23, and

will not' permit it to slip. The -inner sides to Fig. 5 it -wi l be' seen-that great of levers 18 stand parallel with each other while the heads are-being formed on the i nail, as seen in Fig. 5. This osition" will ermlt the rollers 15 to travel etween said.

evers 41'8 without releasing the pressure from the grip dies 24.` 1

I do not desire to beiunderstood as limits ing myself to any certain size, but reserve the-"right to vary the machine in size rand strength in order to be' able f' various pur o'ses'toA which this to makenails' of any size as maybe requiredto lill the peculiar nail maybe app ied, WithoutA departing from the 'v spirit of my invention following. claims.

yHaving'thus fully described I claim and desire to' secure b" ent: 1. In a naiLmaking machine, .a `bed, feed over said ing means for advancing the Stock (bed, a headinfg die mounted for "tpward and romthe end 4of the stock, a

drivellrfor said die mounted for reciprocaf i bed, rocker arms pivoted one tion upon the at either. side of the path of reciprocation of as set forth in the" Y 4,20 m invention,

tters Pat` said` driver, gripping jews minimized' for movement transversely of the path of 11d- Vance Vof the'stek, one on eitherside o ifjseidV 'path, said rocker arms being each edeptedat one end to engage saidgripper jaws, the

driver and the other ends 'of saidrroekerl arms' being provided with coperating'- cam surfaces whereby the advance ofthedrver tow-'rd the stock actuates the rockers to een? the gripper toen'gage seid steek,

und gutters'carried rigidly with-'the respective gripper jawsfor severing the stock 'si- "'mulnaneously its engagementby the g'rippers. r l

12.' Ina nail-making machine, ebedgmeans fthe heading 3. In a nailfmiiking machine, a bed, means for advaneing stock over said bed, heggding for advancing stock over saidbed, a heading die land means fordrivingt against the end of the stock, a Vpair of'grippm `jaws and arms upon which they are carrie said arms being `pivotally mounted for swinging the jaws transversely ofthe path 0f adveneeof the stock, a line' connecting the pivot axis of one of said arms with the center of the jaw Carried by that arm making an angle of about 45 degrees with saidpath of the steek,

andthe pivots of YSaid arms being located die and means for driving itaggilirlsty `the end ofthe stock`,` a 'pa-ir of gripping jaws and arms'upon which ey are carried, said arms being'pivotal.ly' mounted yfor swinging the jaws transversely of the path of advance .of the-stock, "a, line eonneeting 'the ypivot exis of one of said arms with 'the center of the jaw Carried by that arm makinga1i angle of. about 4 5 degrees with said path of the stock, the pivots of said arms being located at `the opposite side of the gripper jaws from the heading die, Vand means for cans l ing initial engagement. ofthe gripper jaws "drieal bore leading tofsail. ehamber dimen-j.

sioned to aeeommodate the stoek' .used for nails,` means for forcibly'enterjing the end I with' the .stock 'during the ac'lvanceof the heading' die tovvard the end of the steek.`

die having af heading chamber and cylin- (ifth stock lint-o. th e"`heading chamber of j the die through Vthesaid bore thereoffor forming a head onsaill 4end ol"` ti'1e said die being'made inI two partsadap'ted toA be separated'- for vreleasing 'the headed4 l 5. In a nai1-making maehrne, .a headingdieI ving eheadingehainber and e .throigh the-bene. Ofi-'Said -dieito' ,fom @ahead I into. a ySecond headinmediately- Outside. the

heading die, and yseid ,diebeingmadein two,

'6.- I'n a naiIfmakingmgLQhine; e heading die yhaving a headingchamber and u, vbore leadingto said chamber of cross setion sub1*I stantilally. equal to that ofthe-.stoekused 'for the najils'j gripper .jews and'ffmeansfer cane- 1ng, themto en age .the steek, means adapted for .ceusm'gre etlyf movement offsaxl gripf per jaws andtheheadingdiefor forcibly entering the endofthe trickinto.the` hen llng chamber thereof; ith-rolighthe` said .bore to form'a; head on seid end- 0f .the st oek, the surfaces of said gripper .jaws Which-ecethe heading die extendingapprpximately per! p en'dieularv to theirgrlp ing sur-aces, and

therelative movement o the gripper jaws a-ndheadipg die being-.sl1ient for swagin `the stock mto a head Vbetween Saiddiean the perpendicular .sur-faees of/saidfgri per- J' mmh@ die 'being ,made n'wo parte wehted to s'epa rat e for-.releesingthe headed die having. a' ,heading chamber and a feylindr-ieal bore-'leading Ato' salid-l Vehiunberfilmen,

signed i to aceommodate the stoel; used for and-,a die carrier comprisinganbifureated -i arm of spring metall, said1 diebeingmadein two parts mounted on ,therespeetivevprongs of saidarm, and, s aidfprrongs standing 'non Vmally separated in position'for releasing the headecLstoek rom ,the die.

' 8 In aV nalleinairing machine a heed-mg dieli'avng a. heading Chamber andV e eylin-v ingahead on Ende ine die? 'havnee head-ina chem-bel?. and,A a bem-leading t f dvi ha he dgof the stoebaidgdie being made in twoy parttsadaptedtogbe Sepa4 ratedjfor releasing the headedlstokythejend, j u ".wallofftheffheilihnig; chamberbeing formed being made in two parts adapted to Separate f an arm pivoted to permit its free end t0 swingtoward and from said gripping de- 'Y vices, seid free end being bifureated and of spring metal, a heading die hving a heading chamber and n bore leading t0` said chamber dimensioned to accommodate the nail stock, said die being made 1n two. parts cerried, respectively, bythe `two prongs of the bifurcated arm, said prongs being nory mally positioned to separate. the two parte of the `di e for releasingthe headed stock therefrom, 'a pair of cheeks fixed to the'bed at either sidejof the pathiof swingof the bifurcated arm `and spaced apart to receiveitsf prongs when they are elosed together with the two. die members in1 contact with each other, and' a driver mounted for reciproation n Vthe b ed adapted to engage the free endof the swinging arm for forcing its prongs between said cheeks and forcing the die on to the end of the stock forheading it.

In testimony whereofI have signed my neme in the presence of two subscribed Wit- IleSSCS.

. Witnesses:

, J. J. MCCALL, i L. J. BUGLER.

DAVID H`..MCCLELLAND. 'i 

